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Sakakibara K, Endo K, Osawa T. Facile synthesis of γ-valerolactone by transfer hydrogenation of methyl levulinate and levulinic acid over Ni/ZrO2. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.03.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Sodium Ion as the Most Essential and Effective Element for the Enantio-Differentiating Hydrogenation of Prochiral Ketones over Tartaric Acid Modified Ni Catalyst. Catal Letters 2017. [DOI: 10.1007/s10562-017-1968-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Osawa T, Kizawa T, Lee IYS, Ikeda S, Kitamura T, Inoue Y, Borovkov V. Durability enhancement of chirally modified metallic nickel catalysts for enantioselective hydrogenation. CATAL COMMUN 2011. [DOI: 10.1016/j.catcom.2011.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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4
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Effects of Sodium Acetate and Residual Aluminum on the Hydrogenation Rate, Optical Yield and Catalyst Durability for the Enantio-Differentiating Hydrogenation of Methyl Acetoacetate Over Tartaric Acid-Modified Raney Nickel Catalysts. Catal Letters 2008. [DOI: 10.1007/s10562-008-9742-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mallat T, Orglmeister E, Baiker A. Asymmetric Catalysis at Chiral Metal Surfaces. Chem Rev 2007; 107:4863-90. [DOI: 10.1021/cr0683663] [Citation(s) in RCA: 501] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- T. Mallat
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, CH-8093 Zurich, Switzerland
| | - E. Orglmeister
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, CH-8093 Zurich, Switzerland
| | - A. Baiker
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, CH-8093 Zurich, Switzerland
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Highly efficient enantio-selective hydrogenation of methyl acetoacetate over chirally modified Raney nickel catalytic system. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2006.12.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Murzin DY, Mäki‐Arvela P, Toukoniitty E, Salmi T. Asymmetric Heterogeneous Catalysis: Science and Engineering. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2007. [DOI: 10.1081/cr-200057461] [Citation(s) in RCA: 202] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Enantio-differentiating hydrogenation of methyl acetoacetate over modified Raney nickel catalysts prepared by two-step modifications. Catal Letters 2006. [DOI: 10.1007/s10562-006-0198-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Studies of the effects of the modification conditions on the hydrogenation rate for the enantio-differentiating hydrogenation of methyl acetoacetate over a tartaric acid–NaBr-modified nickel catalyst. Catal Letters 2006. [DOI: 10.1007/s10562-006-0164-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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The Durability of the Enantio-Differentiating Ability of a Tartaric Acid–NaBr-Modified Reduced Nickel Catalyst Pre-Modified in Tetrahydrofuran. Catal Letters 2006. [DOI: 10.1007/s10562-005-9734-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Osawa T, Ando M, Sakai S, Harada T, Takayasu O. Role of Acetic Acid Added to the Reaction Media for the Enantio-differentiating Hydrogenation of Methyl Acetoacetate Over a Tartaric Acid-modified Nickel Catalyst. Catal Letters 2005. [DOI: 10.1007/s10562-005-8003-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Enantio-differentiating hydrogenation of methyl acetoacetate over reduced nickel catalysts pre-modified in methanol. Catal Letters 2005. [DOI: 10.1007/s10562-005-5866-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Osawa T, Koganei K, Ito N, Kitano M, Harada T, Takayasu O. Study of the properties of nickel oxide and nickel as precursors for the tartaric acid-NaBr-modified nickel catalyst. Catal Letters 2005. [DOI: 10.1007/s10562-004-3453-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Bartek L, Klusoň P, Červený L. In situ Chiral Modification of Nickel Catalysts for Enantioselective Hydrogenation of Methyl Acetoacetate. ACTA ACUST UNITED AC 2005. [DOI: 10.1135/cccc20051642] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Chiral modifications of SiO2-supported and Raney nickel catalysts were studied. The catalysts were employed in asymmetric hydrogenation of methyl acetoacetate (MAA) to (R)- and (S)-enantiomers of methyl 3-hydroxybutanoate. The effects of modification parameters such as type and concentration of modifier; presence of a co-modifier and other additives, pH of modification solution on the enantioselectivity of MAA hydrogenation were discussed. Characteristic features of the in situ modification of Ni/SiO2 were also evaluated and the results obtained were compared with the conventional (premodification) approach. Parameters for the conventional and in situ methods were optimised in a series of experiments for both types of catalysts. The in situ modified Ni/SiO2 was found specifically suitable for repeated use due to virtually no decrease in selectivity and activity.
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